condition mean min max 0 h after light 0.8538905 0.739892 0.967889 4 h after light 2.966775 2.91797 3.01558 8 h after light 2.7041250000000003 2.03689 3.37136 4 h after dark 4.664680000000001 4.45019 4.87917 8 h after dark 2.4190899999999997 2.26247 2.57571 12 h after dark 1.0159495 0.369449 1.66245